Boiler.



A. E.-JORDAN.

BOILER.

APPLICATION FILED 001.24. 1916.

2 .9 12 0220270 35 who 614a Patented Mar. 26, 1918.

ALFRED E. JORDAN, F BROOKLYN, NEW YORK.

BOILER.

Specificationof Letters Patent. Patented llIar. 26, 1918.

Application filed October 24, 1916. Serial No. 127,327.

To all whom it may concern:

Be it known that I, ALFRED E. JouoAN, a subject of Great Britain, and resident of the borough of Brooklyn, in the county of .Kings and State of New York, have invented certain new and useful Improvements in Boilers, of WlllCll the following is a specification.

This invention relates to coal burning boilers, and is characterized by having both fire tubes and water tubes, whereby the circulation is greatly enhanced over either a water tube or fire tube boiler. The water tubes extend through the combustion chambers of the boiler, so that steam generated flows in streams that practically secure circulation in all portions of the boiler.

In the accompanying drawings, Figure 1 shows a section of a boiler as on the line 1, 1 of Fig. 2, with the invention incorporated therein and Fig. 2 represents a section of Fig. 1 on the broken line 2, 2.

The boiler is shown to comprise the cylindrical shell 20, the front plate 21, and the rear plate 22.

A central corrugated furnace flue 25 has connected thereto the central combustion chamber 26 having the side plates 27, 28 that terminate in the lower cylindrical portion 29, the front plate 30 and the rear plate 31. Fire tubes 32 extend between the plate 21 and the combustion chamber 26.- Grates for coal or other solid fuel are provided for the furnace 25.

A side corrugated furnace flue indicated with the side plates 4-4, that terminate in the lower cylindrical portion 46, and the rear plate 47. Fire tubes similar to 32 respectively connect the shell 21 and the combustion chambers 37 and 43. Grates similar to 35 are provided for the furnaces 36 and 42. V

In the combustion chamber 26 are connected the following water tubes: the water tube 50 that extends between the rear plate 31 and the cylindrical portion 29, and the complementary water tube 51 that also extends between the rear plate 31 and the lower cylindrical. portion 29. The axes of the tubes 50 and 51 pass through the longitudinal axis of the furnace 25 and are curved as shown.

The upper ends of each of the tubes 50 and 51 extend through the plate 31 and are fastened thereto by means of the couplings 52. The lower ends of the said tubes 50, 51 extend through the curved portion 29 and are fastened thereto by means of the similar couplings 53. Horizontal pipes 56 and 57 are respectively connected with the couplings 53, and extend between the shell of the furnace 25 and the lower portion of the cylindrical. shell 20, to within close proximity of the front of the boiler.

A pair of similar water pipes 56, 57 have their upper ends extending through and connected to the side plate 28, by means of the couplings 58, and their lower ends extend through and are connected to the cylindrical portion 29, by means of the couplings 59.

Each of the tubes 56, 57 is curved as shown and their axes pass through the longitudinal axis of the furnace 25.

A pair of tubes 62, 63 are shown in the combustion chamber which are complementary to the tubes 56, 57. The tubes 62, 63 at their upper ends extend through and are fastened to the plate 27 by means of couplings 65, and their lower ends extend through and are fastened to the cylindrical portion 29 by means of couplings 66.

The combustion. chamber 37 is provided with a pair of water tubes 70, 71 which are respectively similar to the tubes 50, 51, a pair of water tubes like 72 which are similar to 56, 57 and a pair of water tubes like 73 which are similar to 62 and 63.

The combustion chamber 43 is provided with a pair of water tubes 76, 77 which are similar to 70 and 71, a pair of water tubes like 78 which are similar to 73 and a pair of tubes like 80 which are similar to 72.

When the boiler is operating, the cool water in the lower portion thereof will enter the water pipes 56 57*, rise in the tubes 50, 51 and be discharged into the rear portion of the boiler between the combustion chamber 26 and the rear shell of the boiler. The water also enters the lower ends of the tubes 56, 57 and is discharged at the upper ends of the latter tubes between the combustion chamber 26 and the combustion chamber 43. Water also enters the lower ends of the tubes 62, 63 and is discharged from the upper ends of the 1atter, between the combustion chamber 26 and the combustion chamber 37.

Water enters the lower ends of the tubes '70, 71, 7 6, 77 and is discharged attheir up per ends respectively between the combustion chambers 37 and 43 and the rear plate 22 of the boiler. /Vater enters the lower ends of the tubes 72, S0, and is discharged at their upper ends in the spaces, respectively, between the combustion chambers 37, 4L3 and 26. Water enters the lower ends of the tubes 73 and 7S and discharged at their upper ends adjacent to the sides of the boiler.

Pipes similar to 56 and 57" can extend from the bottom ends of any of the water tubes that extend through the combustion chambers, without departing from the spirit of the invention;

Having described my invention What I desire to secure by Letters Patent and claim is:

1.- In a boiler the combination of a shell, a front plate and rear plate for the shell, a cylindrical furnace flue within the boiler, a combustion chamber extending to the rear of said furnace flue, the combustion chamber having side plates, a rear plate and a cylindrical bottom, water tubes secured in the combustion chamber having their longitudinal axes interesting a line coincident with a longitudinal axis of the furnace flue and having their ends leading to the water space of the boiler, the upper ends of said water tubes secured to the rear plate of the combustion chamber and their lower ends secured to the cylindrical bottom of the combustion chamber, pipes connected to the lower ends of said water tubes and extending longitudinally forward to close proximity of the front plate of the boiler and separated from the outer surface of the furnace fine and the inner surface of the shell of the boiler, and transverse tubes secured in the combustion chamber with their longitudinal axes intersecting a line coincident with the longitudinal axis of said furnace flue, having their ends opening into the water space of the boiler, some of said transverse tubes having their upper ends secured to one of the side plates of the combustion chamber and their lower ends secured to the bottom of the combustion cliambei', the other of said transverse tubes having their upper ends secured to .the opposite side plate of the combustion chamber and their lower ends secured to the bottom of the combustion chamber.

2. In a boiler the combination of a shell, a front plate and a rear plate for the shell, a plurality of furnace fiues extending from the front plate into the boiler, a combustion chamber extending to the rear of each furnace flue, transverse Water tubes secured in each combustion chamber hav'in their ends opening into the water space 0' the boiler with their longitudinal axes intersecting a line coincidentwith the longitudinal axis of its furnace, the upper ends of some of said transverse tubes secured to one of the side plates of the combustion chamber and their lower ends secured to the bottom of the combustion chamber, and other similar trans verse tubeshaving their upper ends secured to the opposite side plate of the combustion chamber with their lower ends secured to the bottom of the combustion" chamber.

Signed at the borough of Manhattanyin the county of New York and State of New York, this 17th day of October, A. D. 1916.

ALFRED E. JORDAN.

lVitnesses:

A. A. DE BONNEVILLE, JEAN V. KENT.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

